WO2023142193A1

WO2023142193A1 - Filter assembly and cartridge

Info

Publication number: WO2023142193A1
Application number: PCT/CN2022/076932
Authority: WO
Inventors: 王远航; 杨荣; 张月川; 潘文杰
Original assignee: 乐智有限公司
Priority date: 2022-01-30
Filing date: 2022-02-18
Publication date: 2023-08-03
Also published as: CN218245699U

Abstract

A filter assembly and a cartridge. The filter assembly (2) comprises a filter member (70), and an accommodating space (71) is provided in the radial direction of the filter member (70). A functional member (3) is fixed in the accommodating space (71), and the filter member (70) is in contact with a part of the outer surface of the functional member (3). First, the functional member (3) is added to enhance the cooling function, or provide the filter member (70) with functions other than filtering, such as flavor enhancement, health care, treatment, etc., thereby increasing the variety of functions of the filter assembly (2) and enhancing the taste and the inhalation effect for a user. Second, the functional member (3) is fixed in the accommodating space (71) provided on the filter member (70), and is in contact with the filter member (70) so that the functional member (3) is better fixed in the filter member (70), and the functional member (3) is prevented from moving in the filter member (70). Moreover, the functional member (3) is provided within the filter member (70). Because the user directly contacts the filter member (70) during inhalation, the inhalation force at the filter member (70) is maximal, thereby improving the performance and effectiveness of the functional member (3). In addition, when the filter member (70) is fixed in the accommodating space (71) provided in the radial direction of the filter member (70), the assembly difficulty of the filter member (70) and the functional member (3) can be reduced.

Description

Filter components and pods

The present invention claims the priority of the prior application of the application number 2022202490170 filed on January 30, 2022 with the title of "filter assembly and pod", and the content of the above-mentioned prior application is incorporated into this document by way of reference.

technical field

The present application belongs to the technical field of cartridges, and in particular relates to filter components and cartridges.

Background technique

Now more and more users use pods to replace traditional cigarettes in order to reduce the damage caused by traditional cigarettes to the user's body. Existing pods usually include filter components, but the functions of the current filter components cannot meet the growing needs of users.

Contents of the invention

In view of this, the first aspect of the present application provides a filter assembly, including:

a filter element having a housing space in the radial direction of the filter element; and

The functional part is fixed in the accommodating space, and the filter part is in contact with a part of the outer surface of the functional part.

The second aspect of the present application provides a cartridge, including

The pipe body is provided with an accommodation space;

a sealing piece, sealed at one end of the tube body, and covering the containing space;

a smoking part, located in the accommodating space, and adjacent to the sealing part;

a cooling element arranged in the accommodating space and adjacent to the smoking element; and

The filter assembly provided in the first aspect of the present application is arranged in the accommodating space and adjacent to the cooling element.

Description of drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will describe the drawings that need to be used in the embodiments of the present application.

FIG. 1 is a schematic diagram of a three-dimensional structure of a filter assembly in an embodiment of the present application.

Figure 2 is an exploded view of Figure 1.

Fig. 3 is a schematic cross-sectional view along the direction A-A of Fig. 1 .

Fig. 4 is a schematic structural diagram of a filter element in an embodiment of the present application.

FIG. 5 is a schematic structural diagram of functional components in an embodiment of the present application.

FIG. 6 is a schematic structural diagram of functional components in another embodiment of the present application.

Fig. 7 is a schematic structural diagram of a filter assembly in another embodiment of the present application.

FIG. 8 is an exploded schematic view of FIG. 7 .

FIG. 9 is a schematic structural diagram of a cartridge in an embodiment of the present application.

Fig. 10 is a schematic structural view of a pipe body in an embodiment of the present application.

Fig. 11 is a schematic structural diagram of a cooling element in an embodiment of the present application.

Fig. 12 is a schematic diagram of a partial structure of the cartridge in an embodiment of the present application.

Fig. 13 is a schematic structural diagram of a cartridge in another embodiment of the present application.

Fig. 14 is a partial schematic diagram of the cartridge in another embodiment of the present application.

Fig. 15 is a schematic structural diagram of the cartridge in another embodiment of the present application.

Fig. 16 is an exploded view of the cartridge in an embodiment of the present application.

Fig. 17 is a schematic structural diagram of the cartridge in another embodiment of the present application.

FIG. 18 is a schematic cross-sectional view of the cartridge along the radial direction in an embodiment of the present application.

Label description:

Pod-1, Filter Assembly-2, Filter-70, Storage Space-71, First Surface-72, Second Surface-73, Groove-74, Functional Part-30, Shell-31, Functional Part- 32, pipe body-40, accommodation space-41, sealing part-50, smoking part-60, cooling part-10, first through hole-100, first end-101, second end 102, first air-permeable seal Part-81, second air-permeable sealing part-82, hole-83, decoration part-90, first end surface-91, second end surface-92, avoidance sign area-93, extrusion sign area-94.

Detailed ways

The following are preferred embodiments of the application. It should be pointed out that for those skilled in the art, without departing from the principle of the application, some improvements and modifications can also be made, and these improvements and modifications are also considered as the present invention. The scope of protection applied for.

This embodiment provides a filter assembly, including:

Wherein, the filter element has a first surface and a second surface opposite to each other in a radial direction, and the accommodating space runs through the first surface and the second surface.

Wherein, the functional part abuts against the side wall of the receiving space.

Wherein, the filter element and the functional element are in an interference fit, and the ratio of the opening size of the accommodating space to the size of the functional element in the axial direction of the filter element is (0.9-0.95):1.

Wherein, there is a groove on the side wall, and some of the functional parts are arranged in the groove.

Wherein, the ratio of the opening size of the receiving space to the size of the filter element in the axial direction of the filter element is 1:(2.8-4).

Wherein, in the axial direction of the filter element, the length of the filter element is 8-10 mm. In the radial direction of the filter element, the diameter of the filter element is 6.5-7 mm.

Wherein, the functional part includes a housing, and a liquid or gaseous functional part arranged in the housing, and the housing abuts the filter; the housing can be subjected to the radial direction of the filter Rupture occurs when the preset external force is applied.

Wherein, when the shell is broken, the functional portion in liquid state can also be adsorbed onto the filter element.

Wherein, the shape of the functional part may be spherical, ellipsoidal, or cylindrical.

Wherein, when the shape of the functional part is spherical, the diameter is 3-4mm; when the shape of the functional part is ellipsoidal or cylindrical, the outer diameter of the filter part in the radial direction is 3-4mm, The length in the axial direction of the filter element is 4-7mm.

This embodiment provides a cartridge, including:

The pipe body is provided with an accommodation space;

The filter assembly provided in the above embodiments of the present application is disposed in the accommodating space and adjacent to the cooling element.

Wherein, the cooling element has a first through hole that runs through the first end and the second end that are arranged opposite to each other, and the pod also includes a first air-permeable sealing part and a second air-permeable sealing part, and the first air-permeable sealing part is fixed at the first end and covering the first through hole, the second air-permeable sealing part is fixed at the second end and covering the second through-hole; the first air-permeable sealing part is adjacent to the fume-generating The second air-permeable seal is adjacent to the filter element.

Wherein, the first air-permeable sealing part is provided with at least one first hole, and/or, the second air-permeable part is provided with at least one second hole.

Wherein, the pipe body has an avoidance marking area corresponding to the accommodation space.

Wherein, the tube body also has two extrusion marking areas arranged opposite to each other, and the line connecting the centers of the two extrusion marking areas is perpendicular to the extending direction of the accommodating space.

Wherein, the length of the pipe body is 42-46 mm, the outer diameter is 6.9-7.1 mm, and the inner diameter is 6.4-6.65 mm.

Wherein, the length of the cooling member is 16-23 mm, and the outer diameter is 6-6.6 mm.

Wherein, the pod further includes a decorative part, the decorative part is sleeved on the tube body and the sealing part, the decorative part is provided with a first end face and a second end face opposite to each other, and the first end face The second end surface is flush with the surface of the sealing member away from the tube body, and the second end surface is flush with the surface of the filter member away from the sealing member.

Wherein, in the axial direction of the pipe body, the length of the decoration part is 42-46 mm; in the radial direction of the pipe body, the outer diameter of the decoration part is 7.15-7.3 mm.

Before introducing the technical solution of the present application, the technical problems in the related art will be introduced in detail.

Traditional cigarettes contain a large amount of tar and nicotine, which seriously endanger the health of users. With the increasing health needs of users, Pod 1 also came into being. The smoking element 60 in the cartridge 1 usually does not contain tobacco components, or contains a small amount of tobacco components. And the pod 1 is usually a heat-not-burn pod 1 , that is, the smoking part 60 is heated without burning the smoking part 60 . In this way, harmful substances such as tar and nicotine can be avoided, and the surrounding environment will not be polluted, and the surrounding people will not be affected, so as to ensure the health of the smoker and the surrounding people.

Based on the above differences, more and more users are now using pods 1 to replace traditional cigarettes in order to reduce the damage caused by traditional cigarettes to the user's body. The filter assembly 2 in the pod 1 usually functions to filter harmful substances and reduce the temperature of the smoke, preventing the temperature of the smoke from being too high and causing the user to burn the mouth of the user when smoking. However, the function of the filtering component 2 cannot meet the increasing demands of users at present. For example, the taste of the current pod 1 is usually determined by the original smell of the smoking part 60 . Or it can be obtained by adding food flavors and fragrances on the smoking part 60. However, subject to factors such as the capacity of the smoking piece 60, there are certain limitations in its aroma, persistence and richness of taste.

In view of this, in order to solve the above problems, the present application provides a filter assembly 2 . Please refer to FIG. 1-FIG. 6 together. FIG. 1 is a schematic diagram of a three-dimensional structure of a filter assembly in an embodiment of the present application. Figure 2 is an exploded view of Figure 1. Fig. 3 is a schematic cross-sectional view along the direction A-A of Fig. 1 . Fig. 4 is a schematic structural diagram of a filter element in an embodiment of the present application. FIG. 5 is a schematic structural diagram of functional components in an embodiment of the present application. FIG. 6 is a schematic structural diagram of functional components in another embodiment of the present application.

This embodiment provides a filter assembly 2 , including a filter element 70 , and a receiving space 71 is provided in the radial direction of the filter element 70 . The functional component 30 is fixed in the receiving space 71 , and the filter component 70 contacts a part of the outer surface of the functional component 30 .

The filter assembly 2 is mainly used for filtering harmful substances in the smoke, and can further cool down the smoke to avoid scalding the user's mouth. The filter assembly 2 provided in this embodiment generally includes a filter element 70 and a functional element 30 , and each component and the cooperation between each component will be described in detail next.

The filter element 70 is the structure that plays a major role in the filter assembly 2, and the filter element 70 can be used to filter some harmful substances and further reduce the temperature of the flue gas. Optionally, the material of the filter element 70 includes but not limited to food-grade polylactic acid, cellulose acetate and the like. Further optionally, when the material of the filter element 70 is polylactic acid, pultrusion molding may be used. Optionally, in the axial direction of the filter element 70, the length L5 of the filter element 70 is 8-10 mm. In the radial direction of the filter element 70, the diameter d5 of the filter element 70 is 6.5-7 mm.

A receiving space 71 can be defined in the radial direction of the filter element 70 for accommodating subsequent functional elements 30 . The receiving space 71 may be a groove or a hole, which is not limited in this embodiment. When the receiving space 71 is a hole, the filter element 70 has a first surface 72 and a second surface 73 opposite to each other in the radial direction, and the receiving space 71 runs through the first surface 72 and the second surface 73 . This can reduce the difficulty of setting up the receiving space 71 . When the accommodating space 71 is a hole, the accommodating space 71 only penetrates the first surface 72 or the second surface 73 , so as to prevent the functional component 30 from falling down from the other surface. In addition, the present embodiment does not limit the shape of the storage space 71 . In this embodiment, the accommodating space 71 penetrates both the first surface 72 and the second surface 73 for a schematic illustration.

The functional part 30 is used to realize various functions. In other words, the shape, structure, material and other factors of the functional part 30 can be used to realize various functions. For example, if the material of the functional part 30 is a heat-absorbing material such as metal, plastic, etc., when the smoke is transmitted to the functional part 30, the heat-absorbing material can be used to absorb a large amount of heat, thereby further improving the cooling effect. If the functional part 30 has various spices, the functional part 30 can be used to change the taste of the smoke, thereby improving the enhancement, improving the quality of the smoke and the saturation, diversity and persistence of the taste. If the functional part 30 has various traditional Chinese medicine or western medicine ingredients, the functional part 30 can be used to make the smoke carry various traditional Chinese medicine or western medicine ingredients. Functions of health care and treatment.

In this embodiment, the functional part 30 is used as a flavoring part for schematic illustration, so as to change the taste of the smoke. Optionally, the functional part 30 includes a housing 31, and a liquid or gaseous functional part 32 disposed in the housing 31, the housing 31 abuts the filter 70; the housing 31 can be subjected to The rupture occurs upon a preset external force along the radial direction of the filter element 70 . The functional part 30 includes a housing 31 and a functional part 32 disposed in the housing 31 , and the functional part 32 may be in liquid or gaseous state. The housing 31 abuts against the filter element 70 to be fixed. And the casing 31 can be broken when receiving a preset external force along the radial direction of the filter element 70 . For example, when the user pinches the filter element 70 along the radial direction of the filter element 70 with his hands, when the extrusion force is greater than the preset external force, the shell 31 can be crushed to crush, rupture, or break a hole 83 to make it The inner functional part 32 is exposed. At this time, when the smoke passes through, the functional part 32 can be moved together, and the suction force of the user can also make the functional part 32 move, and finally suck it into the user's mouth. The application of the functional part 30 improves the taste and smell experience of the user. Further optionally, the functional part 30 may be molded by extrusion blow molding or the like.

Optionally, when the shell 31 is broken, the liquid functional part 32 can also be adsorbed onto the filter element 70, so that the user can more easily remove the functional part 32 when the smoke passes through and the user inhales. Inhaled into the oral cavity, the aroma can be released from the filter cotton more continuously, improving the user experience, and the liquid or gaseous functional part 32 can also be used to cool down the temperature to a certain extent.

Optionally, the functional part 32 includes food-grade spices, including but not limited to one or more flavor blends of blueberry, apple, watermelon, mango, grape and other fruit and vegetable flavors.

Optionally, the shape of the functional part 30 may be spherical, ellipsoidal, or cylindrical. As shown in FIG. 5 , when the shape of the functional part 30 is spherical, the diameter d3 is 3-4 mm. As shown in Figure 6, when the shape of functional part 30 is ellipsoidal or cylindrical, the outer diameter d3 in the radial direction D2 of filter part 70 is 3-4mm, and the length L3 in the axial direction D1 of filter part 70 is 4 mm. -7mm. In addition, the axial direction in the following text is represented by D1, and the radial direction is represented by D2. And because the filter element 70 has a thickness, when the filter element 70 is opened with the receiving space 71 , the filter element 70 has an outer peripheral side wall and an inner peripheral side wall. The outer peripheral sidewall has an appearance surface of the filter element 70 , and the inner peripheral sidewall surrounds and forms a receiving space 71 . Therefore, the filter element 70 has two dimensions in the radial direction, one is the dimension of the opposite sides of the outer peripheral sidewall (ie, the outer diameter), and the other is the dimension of the opposite sides of the inner peripheral sidewall (ie, the inner diameter). In other words, in the radial direction of the filter element 70 , the dimensions of the opposite sides of the outer peripheral sidewall are 3-4mm. And the same understanding can be made for the length, outer diameter, inner diameter, axial direction, and radial direction mentioned below in this application, and this application will not repeat them.

The filter assembly 2 provided in this embodiment can firstly increase the cooling function by adding the functional part 30, or make the filter part 70 have other functions besides filtering, such as adding fragrance, health care, treatment, etc., thereby improving the filter assembly 2. Various types of functions improve the user's taste and suction effect.

Secondly, the functional element 30 is fixed in the receiving space 71 of the filter element 70 and contacts the filter element 70 so that the functional element 30 is better fixed in the filter element 70 and prevents the functional element 30 from moving in the filter element 70 . And the functional part 30 is arranged in the filter part 70, since the user directly contacts the filter part 70 when inhaling, the suction force at the filter part 70 is the largest, which can further improve the performance and effect of the functional part 30.

In addition, when the filter element 70 is fixed in the receiving space 71 opened in the radial direction of the filter element 70 , the difficulty of assembling the filter element 70 and the functional element 30 can be reduced.

Please refer to FIG. 3 again. In this embodiment, the functional component 30 abuts against the side wall of the receiving space 71 . In this embodiment, the functional component 30 can abut against the side wall of the receiving space 71 so that the functional component 30 is fixed on the filter component 70 . Of course, in other embodiments, the functional component 30 can also be bonded to the side wall of the receiving space 71 .

Please refer to FIGS. 4-5 again. In this embodiment, the filter element 70 is an interference fit with the functional element 30, and the opening size d0 of the receiving space 71 is in the same position as the functional element 30 in the filter element. The dimension ratio in the axial direction of 70 is (0.9-0.95):1. A certain amount of interference between the filter element 70 and the functional element 30 is ensured, and the functional element 30 can be fixed on the filter element 70 without damaging the functional element 30 within the above range. If the opening size of the receiving space 71 and the size of the functional part 30 in the axial direction of the filter part 70 are too small, such as less than 0.9:1, the receiving space 71 is too small at this time, and the functional part will be distorted due to the small inner diameter. 30 damaged. If the opening size of the accommodating space 71 and the dimension of the functional part 30 in the axial direction of the filter part 70 are too large, for example greater than 0.95:1, the functions cannot be inserted into the filter part 70 through interference fit.

Please refer to FIG. 7-FIG. 8 together. FIG. 7 is a schematic structural diagram of a filter assembly in another embodiment of the present application. FIG. 8 is an exploded schematic view of FIG. 7 . In this embodiment, a groove 74 is formed on the side wall, and part of the functional components 30 are disposed in the groove 74 .

In this embodiment, on the basis of interference fit, a groove 74 is provided on the side wall, and some functional components 30 are arranged in the groove 74 . The groove 74 can be used to relieve the extrusion force caused by the interference fit, so as to prevent the extrusion deformation of the filter, which will cause other parts such as the pipe body 40 to also deform, and finally cause the problem of uneven shape, such as in the axial direction On the opposite ends of the filter element 70, the positions corresponding to the functional rooms will protrude. In addition, the existence of the first groove 74 can further define the position of the functional component 30 in the filter component 70 , improving the accuracy of the position of the functional component 30 in the filter component 70 .

Of course, in other embodiments, the functional component 30 can also be bonded to the side wall of the filter component 70 by, for example, bonding, so that the functional component 30 is fixed on the filter component 70 .

Please refer to FIG. 4 again. In this embodiment, the ratio of the opening size d0 of the receiving space 71 to the dimension L5 of the filter element 70 in the axial direction of the filter element 70 is 1:(2.8-4).

In the axial direction of the filter element 70 , the opening size of the receiving space 71 and the length of the filter element 70 are 1: (2.8-4), ensuring that the functional element 30 will not fall out of the receiving space 71 . It is also unlikely that the filter member 70 will be extruded and deformed in the length direction, causing the two end faces to be uneven. If the size of the opening of the receiving space 71 is too large, not only the functional element 30 cannot be fixed, but also the filter element 70 is too small, thereby reducing the function of the filter element 70 itself. In other words, the size of the filter element 70 in the longitudinal direction is reduced, and the anti-deformation ability is weakened. When the functional element 30 is pressed in, the filter is squeezed by the filter element 70 in the length direction, and the two ends of the filter element 70 may be deformed and outward. Raised, affecting the appearance of performance. If the opening size of the receiving space 71 is too small, the pressing force and rebound force received by the functional component 30 after it is installed are too large, which may damage the functional component 30 .

Please refer to FIG. 9-FIG. 11 . FIG. 9 is a schematic structural diagram of the cartridge in an embodiment of the present application. Fig. 10 is a schematic structural view of a pipe body in an embodiment of the present application. Fig. 11 is a schematic structural diagram of a cooling element in an embodiment of the present application. This embodiment also provides a pod 1 , including a tube body 40 and an accommodating space 41 . The sealing member 50 is sealed at one end of the tube body 40 and shields the containing space 41 . The smoking element 60 is disposed in the accommodating space 41 and adjacent to the sealing element 50 . The cooling element 10 is disposed in the accommodating space 41 and adjacent to the smoking element 60 . The filter assembly 2 provided in the above embodiments of the present application is disposed in the accommodating space 41 and adjacent to the cooling element 10 .

In addition to the filter assembly 2, this embodiment also provides a cartridge 1 including the filter assembly 2 described above. Optionally, the cartridge 1 of this embodiment is a heat-not-burn cartridge 1 . The pod 1 also includes a tube body 40, a sealing member 50, a smoking member 60, and a cooling member 10. This embodiment will introduce each component in detail in turn.

The tube body 40 is the main part of the pod 1 and is used to install, fix and carry various components. The tube body 40 has an accommodating space 41 , and the tube body 40 can pass through two opposite ends to form the accommodating space 41 . Optionally, the tube body 40 can be formed by passing through a solid tube body 40 to form the accommodation space 41 , or the tube body 40 with the accommodation space 41 can be injection molded through an injection molding process, or a material with a certain thickness can be used to pass through the tube body 40 . The tube body 40 with the accommodation space 41 is formed by winding.

Optionally, the material of the tube body 40 includes food-grade materials. Further optionally, the food-grade material includes, but is not limited to, one or more of white cardboard and kraft paper. Specifically, food-grade materials include, but are not limited to, 50-200g/㎡ white cardboard, 50-200g/㎡ kraft paper, etc.

Optionally, the length L4 of the tube body 40 is 42-46 mm, the outer diameter d4 is 6.9-7.1 mm, and the inner diameter d4' is 6.4-6.65 mm.

The sealing piece 50 is a part that seals one of the two ends of the open storage space 41 of the tube body 40, that is, the sealing piece 50 is sealed on the end face of the tube body 40, and covers the storage space 41 to prevent subsequent smoking. Part 60 falls out, also can prevent that smoking part 60 is subjected to external force collision, be affected with damp.

Optionally, the material of the sealing member 50 includes food-grade materials. Further optionally, food-grade materials include, but are not limited to, one or more of silk cotton paper, highly air-permeable paper, and butter paper. Specifically, food-grade materials include but are not limited to 10-50g/㎡ silk cotton paper, 10-50g/㎡ high air permeability paper, 45-105g/㎡ butter paper, etc.

Optionally, the sealing member 50 is circular with a diameter of 6.9-7.2 mm, can completely cover the receiving space 41 , and is sealed on the end surface of the tube body 40 .

Optionally, the material of the sealing member 50 can be cut into a desired shape by die punching, knife die cutting or laser cutting, and then sealed on the tube body 40 . Alternatively, the sealing member 50 is sealed on the tube body 40 first, and then the desired outer shape is cut out by die cutting, knife die cutting or laser cutting.

The smoking part 60 is the main component of the cartridge 1, and the smoking part 60 is mainly heated to generate smoke for the user to inhale. Optionally, the smoking piece 60 is prepared from various herbs. Optionally, the shape of the smoking element 60 is sheet or pellet.

The smoking element 60 can be disposed in the accommodating space 41 and adjacent to the sealing element 50 , that is, abutting against the sealing element 50 . Optionally, in the axial direction of the tube body 40, the length of the smoking element 60 is 13-18mm. In the radial direction, the smoking member 60 has a diameter of 6.4-6.6mm.

The cooling element 10 is the main part of the filter assembly 2 that performs the function of cooling. The cooling element 10 has a structure with a first through hole 100. Specifically, the first through hole 100 can be formed through the oppositely disposed first end surface 91 and the second end surface 92, so that the flue gas can pass through the first through hole 100. Reduce the temperature of the flue gas when passing through. Optionally, the cooling element 10 can be formed by passing through a solid cooling element 10 to form the first through hole 100, or the cooling element 10 with the first through hole 100 can be injection molded through an injection molding process, or can also be formed by using a certain The material with the thickness is wound to form the cooling element 10 with the first through hole 100 .

Optionally, the material of the cooling element 10 includes silica gel, food grade materials and the like. The "food grade material" mentioned above refers to the toxic or harmful substances that can reduce or even not produce toxic or harmful substances to the human body or the environment when heated. Further optionally, the food-grade material includes, but is not limited to, one or more of white cardboard, kraft paper, and polylactic acid (PLA). Specifically, the cooling member 10 includes, but is not limited to, white cardboard of 50-200 g/㎡, kraft paper of 50-200 g/㎡, and the like.

Optionally, the length L1 of the cooling element 10 is 16-23 mm, and the outer diameter d1 is 6-6.6 mm. Designing the cooling element 10 in the above-mentioned size range can not only improve the cooling performance, but also ensure the concentration of the smoke and the suction resistance during smoking. If the outer diameter of the cooling tube is too small, the resistance of the exhaust gas will be too large, and if the outer diameter of the cooling tube is too large, the concentration of the flue gas in the cooling tube will be too small, affecting The taste of smoking smoke. Therefore, the outer diameter of the cooling tube is 6-6.6 mm, which can make the concentration of the flue gas in the cooling element 10 full while ensuring low suction resistance. It should be noted that the suction resistance refers to the suction resistance. Wherein, the suction resistance refers to the resistance encountered when the smoke is sucked into the cooling tube and drawn out from the cooling element 10 .

Optionally, when the pipe body 40 and the cooling element 10 are coiled, flat or oblique coils can be used. The pipe body 40 and the cooling element 10 may be wound in the same manner or in different manners. If it is a flat roll, it can be made of food-grade paper with a single thickness ranging from 50-200g, and 4-5 layers are stacked together, and only glue with a width of 1mm to 2mm is applied to the joint of the last layer to fix it, which can reduce winding. difficulty. If it is obliquely rolled, 3 layers of food-grade paper can be used, and the thickness ratio from one side to the other is 8:10:6, and they are rolled together in a spiral form at an angle of 135°±15. And glue is applied between the layers, so the three layers can be firmly bonded to each other. After leaving the core, the obliquely rolled paper tube has good stability, strength and roundness.

The pod 1 provided in this embodiment can improve the cooling function of the pod 1 by adopting the filter assembly 2 provided in the above-mentioned embodiment of the present application, or make the pod 1 have other functions, and improve the types of functions of the pod 1 . And it can also reduce the difficulty of assembly and improve the use effect of functional components. And the functional part 30 is arranged in the filter part 70, when the user uses it with the smoking set, the functional part 30 can always be exposed to the smoking set, so that the user can squeeze the functional part 30 at any time.

Please refer to FIG. 12 . FIG. 12 is a schematic diagram of a partial structure of the cartridge in an embodiment of the present application. In this embodiment, the cooling element 10 has a first through hole 100 through the first end 101 and the second end 102 arranged opposite to each other, and the pod 1 also includes a first air-permeable sealing part 81 and a second air-permeable sealing part 81 . part 82, the first air-permeable sealing part 81 is fixed at the first end 101 and covers the first through hole 100, and the second air-permeable sealing part 82 is fixed at the second end 102 and covers the first through-hole 100; Two through holes; the first air-permeable sealing part 81 is adjacent to the smoking element 60 , and the second air-permeable sealing part 82 is adjacent to the filter element 70 .

The cartridge 1 may also include a first air-permeable sealing portion 81 fixed on the second end 102 . When the first air-permeable sealing part 81 covers the first through hole 100, it can play a sealing role. As for the air-permeable effect, the first air-permeable sealing part 81 has the function of air-breathing due to the material of the first air-permeable sealing part 81, or in At least one hole 83 is opened in the first air-permeable sealing part 81 to make it have a breathable function, so that the smoke of the smoking part 60 can enter the cooling part 10 through the first air-permeable sealing part 81 .

Optionally, the material of the first air-permeable sealing portion 81 includes food-grade materials. Further optionally, food-grade materials include, but are not limited to, one or more of silk cotton paper, highly air-permeable paper, and butter paper. Specifically, food-grade materials include but are not limited to 10-50g/㎡ silk cotton paper, 10-50g/㎡ high air permeability paper, 45-105g/㎡ butter paper, etc.

Optionally, the first air-permeable sealing portion 81 is circular with a diameter of 6-6.6 mm, can completely cover the accommodating space 41 , and is bonded to the end surface of the pipe body 40 .

Optionally, the material of the first air-permeable sealing part 81 can be cut into a desired shape by die cutting, knife die cutting or laser cutting, and then bonded to the cooling element 10 . Alternatively, the first air-permeable sealing portion 81 is bonded to the cooling element 10 first, and then the desired outer shape is cut out by die cutting, knife die cutting or laser cutting.

The cartridge 1 may also include a second air-permeable sealing portion 82 fixed on the first end 101 . When the second air-permeable sealing part 82 covers the first through hole 100, it can play a sealing role. As for the air-permeable effect, the material of the second air-permeable sealing part 82 can cause the second air-permeable sealing part 82 to have an air-permeable function, or in At least one hole 83 is opened in the second air-permeable sealing part 82 to make it have a breathable function, so that the smoke of the smoking part 60 can enter the cooling part 10 through the second air-permeable sealing part 82 .

Optionally, the material of the second air-permeable sealing portion 82 includes food-grade materials. Further optionally, food-grade materials include, but are not limited to, one or more of silk cotton paper, highly air-permeable paper, and butter paper. Specifically, food-grade materials include but are not limited to 10-50g/㎡ silk cotton paper, 10-50g/㎡ high air permeability paper, 45-105g/㎡ butter paper, etc.

Optionally, the second gas-permeable sealing portion 82 is circular with a diameter of 6-6.6 mm, can completely cover the accommodating space 41 , and is bonded to the end surface of the pipe body 40 .

Optionally, the material of the second air-permeable sealing part 82 can be cut into a desired shape by die cutting, knife die cutting or laser cutting, and then bonded to the cooling element 10 . Alternatively, the second air-permeable sealing portion 82 is bonded to the cooling element 10 first, and then the required outer shape is cut out by die cutting, knife die cutting or laser cutting.

Due to the existence of the first air-permeable sealing part 81 and the second air-permeable sealing part 82, the storage capacity of the smoke in the cooling element 10 can be increased without considering the process of assembly, which reduces the difficulty of assembly and controls the suction resistance. In addition, it can also prevent the filter element 70 from entering into the cooling element 10 during subsequent assembly.

Please refer to FIG. 13-FIG. 16 together. FIG. 13 is a schematic structural diagram of the cartridge in another embodiment of the present application. Fig. 14 is a partial schematic diagram of the cartridge in another embodiment of the present application. Fig. 15 is a schematic structural diagram of the cartridge in another embodiment of the present application. Fig. 16 is an exploded view of the cartridge in an embodiment of the present application. In this embodiment, the pod 1 further includes a decorative part 90, the decorative part 90 sleeves the tube body 40 and the sealing part 50, and the decorative part 90 is provided with a first end surface 91 disposed opposite to each other. With the second end surface 92, the first end surface 91 is flush with the surface of the sealing member 50 facing away from the tube body 40, and the second end surface 92 is flush with the surface of the filter element 70 facing away from the sealing member 50. flat.

The pod 1 may further include a decorative part 90 , which sleeves the tube body 40 and the sealing part 50 , and uses the decorative part 90 to protect the tube body 40 and the sealing part 50 . Various patterns, shapes, colors, and textures can be set on the decorative part 90 to improve the appearance of the pod 1 . In this embodiment, both ends of the decoration part 90 can be flush with the sealing part 50 and the filter part 70 respectively, thereby improving the flatness of the cartridge 1 .

Optionally, the material of the decorative part 90 includes but not limited to food grade tipping paper. Further optionally, the material of the decorative part 90 includes, but is not limited to, 32-40 g/㎡ tipping paper.

Optionally, in the axial direction of the pipe body 40, the length of the decorative part 90 is 42-46 mm. In the radial direction of the tube body 40, the outer diameter of the decorative part 90 is 7.15-7.3mm.

Please refer to FIG. 17 . FIG. 17 is a schematic structural diagram of a cartridge in another embodiment of the present application. In this embodiment, the tube body 40 has two avoidance marking areas 93 corresponding to the receiving space 71 .

In this embodiment, the avoidance sign area 93 corresponding to the storage space 71 of the tube body 40 has reminded the user of the location of the storage space 71, preventing the user from breaking the tube body 40 and the decorative part 90 corresponding to the storage space 71 when inhaling, thereby making the The functional part 30 is exposed. Specifically, patterns, colors, textures, etc. can be set on the corresponding identification area of the decoration part 90 .

Please refer to FIG. 18 . FIG. 18 is a schematic cross-sectional view of the pod along the radial direction in an embodiment of the present application. In this embodiment, the tube body 40 also has two extrusion marking areas 94 arranged opposite to each other, and the line connecting the centers of the two extrusion marking areas 94 is perpendicular to the extension direction of the accommodation space 71 .

In this embodiment, two squeeze identification areas 94 can also be provided to remind the user of the squeeze position, so that the user can squeeze the functional part 30 with his hand to break it when inhaling, thereby releasing the functional part 32 . The line connecting the centers of the other two extrusion marking areas 94 is perpendicular to the extending direction of the receiving space 71 . That is, the extrusion marking area 94 is not in the extending direction of the receiving space 71 , but perpendicular to the extending direction of the receiving space 71 . This makes it possible to squeeze the filter element 70 , with which the forces are transmitted better to the functional element 30 . If the extrusion marking area 94 is not in the extension direction of the receiving space 71 , it is difficult to transfer the extrusion force to the functional part 30 and cause it to break.

The content provided by the implementation of the application has been introduced in detail above, and the principle and implementation of the application have been described and explained in this paper. The above description is only used to help understand the method and core idea of the application; at the same time, for those in the field Ordinary technicians, based on the idea of this application, will have changes in specific implementation methods and application ranges. In summary, the content of this specification should not be construed as limiting this application.

Claims

A filter assembly, characterized in that it comprises:

a filter element having a housing space in the radial direction of the filter element; and

The functional part is fixed in the accommodating space, and the filter part is in contact with a part of the outer surface of the functional part.
The filter assembly according to claim 1, wherein the filter element has a first surface and a second surface opposite to each other in the radial direction, and the receiving space runs through the first surface and the second surface .
The filter assembly according to claim 1, wherein the functional part abuts against a side wall of the receiving space.
The filter assembly according to claim 3, characterized in that, the filter element and the functional element are interference fit, and the opening size of the receiving space is the same as that of the functional element in the axial direction of the filter element The size ratio is (0.9-0.95):1.
The filter assembly according to claim 4, wherein a groove is formed on the side wall, and some of the functional parts are arranged in the groove.
The filter assembly according to claim 2, wherein the ratio of the opening size of the receiving space to the size of the filter element in the axial direction of the filter element is 1:(2.8-4).
The filter assembly according to claim 1, characterized in that, in the axial direction of the filter element, the length of the filter element is 8-10 mm. In the radial direction of the filter element, the diameter of the filter element is 6.5-7 mm.
The filter assembly according to claim 1, wherein the functional part comprises a housing, and a liquid or gaseous functional part disposed in the housing, the housing abuts the filter element; the housing The rupture can occur upon receiving a predetermined external force in the radial direction of the filter element.
8. The filter assembly according to claim 8, wherein when the housing is broken, the functional portion in a liquid state can also be adsorbed to the filter element.
The filter assembly according to claim 1, wherein the shape of the functional element is spherical, ellipsoidal, or cylindrical.
The filter assembly according to claim 10, wherein when the shape of the functional part is spherical, the diameter is 3-4mm; when the shape of the functional part is ellipsoidal or cylindrical, the filter The outer diameter of the filter element in the radial direction is 3-4mm, and the length of the filter element in the axial direction is 4-7mm.
A pod, characterized in that it includes:

The pipe body is provided with an accommodation space;

a sealing piece, sealed at one end of the tube body, and covering the containing space;

a smoking part, located in the accommodating space, and adjacent to the sealing part;

a cooling element arranged in the accommodating space and adjacent to the smoking element; and

The filter assembly according to any one of claims 1-11, which is arranged in the accommodating space and adjacent to the cooling element.
The cartridge according to claim 12, wherein the cooling element has a first through hole passing through the first end and the second end opposite to each other, and the cartridge also includes a first air-permeable sealing part and a second a gas-permeable sealing part, the first gas-permeable sealing part is fixed at the first end and covers the first through hole, and the second gas-permeable sealing part is fixed at the second end and covers the second through hole; The first air-permeable sealing part is adjacent to the smoking element, and the second air-permeable sealing part is adjacent to the filter element.
The cartridge according to claim 13, wherein at least one first hole is provided on the first air-permeable sealing part, and/or at least one second hole is provided on the second air-permeable part.
The cartridge according to claim 12, wherein the tube body has an avoidance marking area corresponding to the storage space.
The cartridge according to claim 12, wherein the tube body also has two extrusion marking areas opposite to each other, and the line connecting the centers of the two extrusion marking areas is perpendicular to the accommodating space. Extension direction.
The cartridge according to claim 12, wherein the tube body has a length of 42-46 mm, an outer diameter of 6.9-7.1 mm, and an inner diameter of 6.4-6.65 mm.
The cartridge according to claim 12, wherein the length of the cooling element is 16-23 mm, and the outer diameter is 6-6.6 mm.
The cartridge according to claim 12, characterized in that, the cartridge further comprises a decorative piece, the decorative piece sleeves the tube body and the sealing piece, and the decorative piece is provided with a second oppositely arranged An end surface and a second end surface, the first end surface is flush with the surface of the sealing member away from the tube body, and the second end surface is flush with the surface of the filter element away from the sealing member.
The cartridge according to claim 19, characterized in that, in the axial direction of the tube body, the length of the decoration is 42-46mm; in the radial direction of the tube body, the length of the decoration The outer diameter of the piece is 7.15-7.3mm.